Skip to main content

IMPACT OF OPERATING CONDITIONS ON THE TREATMENT OF ATAD OFFGASES WITH BIOFILTERS

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Abstract:

The results of pilot scale testing that was performed to evaluate the use of biofilters for treatment of ATAD offgases under controlled conditions are presented in this paper. The biofilter temperature, source of post-humidification water, bed pH and pollutant loading were varied to assess their impact on the removal of a mixture of reduced sulphur compounds (RSC's) and NH3. Sampling events consisted of hourly measurements of the RSC and NH3 in the biofilter influent and effluent over a 24 hour, which was the interval between feeding of the ATAD. The leachate from the biofilter was also characterized with respect to pH, NH4 +, SO4 2-, NO3 - and NO2 - concentrations to allow for mass balances on sulfur and nitrogen and to identify the removal mechanisms that were active in the biofilter.

Temperature was observed to have a substantial impact on nitrification in the biofilter but had little impact on the removal of RSC's. The source of post-humidification water (potable vs. plant) did not appear to influence the performance of the biofilter. Increasing the leachate pH in the biofilter did not appear to affect either the rate of nitrification or the rate of oxidation of reduced sulfur compounds. The elimination capacity of RSC's did not appear to be exceeded over the range of loadings examined in this study. The loadings of NH3 appeared to be higher than the biofilters elimination capacity for this substance.

Document Type: Research Article

DOI: https://doi.org/10.2175/193864705783967863

Publication date: 2005-01-01

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more